Print out all available EGL configurations.

#endif

int printEGLConfigurations(EGLDisplay dpy) {

    EGLint numConfig = 0;

    EGLint returnVal = eglGetConfigs(dpy, NULL, 0, &numConfig);

    checkEglError("eglGetConfigs", returnVal);

    if (!returnVal) {

        return false;

    }

    printf("Number of EGL configuration: %d\n", numConfig);

    EGLConfig* configs = (EGLConfig*) malloc(sizeof(EGLConfig) * numConfig);

    if (! configs) {

        printf("Could not allocate configs.\n");

        return false;

    }

    returnVal = eglGetConfigs(dpy, NULL, 0, &numConfig);

    checkEglError("eglGetConfigs", returnVal);

    if (!returnVal) {

        free(configs);

        return false;

    }

#define X(VAL) {VAL, #VAL}

    struct {EGLint attribute; const char* name;} names[] = {

    X(EGL_BUFFER_SIZE),

    X(EGL_RED_SIZE),

    X(EGL_GREEN_SIZE),

    X(EGL_BLUE_SIZE),

    X(EGL_ALPHA_SIZE),

    X(EGL_CONFIG_CAVEAT),

    X(EGL_CONFIG_ID),

    X(EGL_DEPTH_SIZE),

    X(EGL_LEVEL),

    X(EGL_MAX_PBUFFER_WIDTH),

    X(EGL_MAX_PBUFFER_HEIGHT),

    X(EGL_MAX_PBUFFER_PIXELS),

    X(EGL_NATIVE_RENDERABLE),

    X(EGL_NATIVE_VISUAL_ID),

    X(EGL_NATIVE_VISUAL_TYPE),

    X(EGL_PRESERVED_RESOURCES),

    X(EGL_SAMPLE_BUFFERS),

    X(EGL_SAMPLES),

    // X(EGL_STENCIL_BITS),

    X(EGL_SURFACE_TYPE),

    X(EGL_TRANSPARENT_TYPE),

    // X(EGL_TRANSPARENT_RED),

    // X(EGL_TRANSPARENT_GREEN),

    // X(EGL_TRANSPARENT_BLUE)

    };

#undef X

    for(int i = 0; i < numConfig; i++) {

        printf("Configuration %d\n", i);

        EGLConfig config = configs[i];

        for (int j = 0; j < sizeof(names) / sizeof(names[0]); j++) {

            EGLint value = -1;

            returnVal = eglGetConfigAttrib(dpy, config, names[j].attribute, &value); 

            if (returnVal) {

                printf(" %s: %d (0x%x)", names[j].name, value, value);

            }

        }

        printf("\n");

    }

    free(configs);

    return true;

}

int main(int argc, char** argv) {

    EGLBoolean returnValue;

    EGLConfig myConfig = {0};

        return 0;

    }

    if (!printEGLConfigurations(dpy)) {

        printf("printEGLConfigurations failed\n");

        return 0;

    }

    EGLNativeWindowType window = android_createDisplaySurface();

    returnValue = EGLUtils::selectConfigForNativeWindow(dpy, s_configAttribs, window, &myConfig);

    if (returnValue) {